The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2024
Filed:
Aug. 09, 2021
Apple Inc., Cupertino, CA (US);
Jeremy C. Andrus, Sunnyvale, CA (US);
Joseph R. Auricchio, Redwood City, CA (US);
Russell A. Blaine, San Carlos, CA (US);
Daniel A. Chimene, San Francisco, CA (US);
Simon M. Douglas, Cupertino, CA (US);
Landon J. Fuller, Cupertino, CA (US);
Yevgen Goryachok, Los Gatos, CA (US);
John K. Kim-Biggs, Pittsburgh, PA (US);
Arnold S. Liu, Mountain View, CA (US);
James M. Magee, Orlando, FL (US);
Daniel A. Steffen, San Francisco, CA (US);
Roberto G. Yepez, San Francisco, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Embodiments described herein provide techniques to manage drivers in a user space in a data processing system. One embodiment provides a data processing system configured perform operations, comprising discovering a hardware device communicatively coupled to the communication bus, launching a user space driver daemon, establishing an inter-process communication (IPC) link between a first proxy interface for the user space driver daemon and a second proxy interface for a server process in a kernel space, receiving, at the first proxy interface, an access right to enable access to a memory buffer in the kernel space, and relaying an access request for the memory buffer from the user space driver daemon via a third-party proxy interface to enable the user space driver daemon to access the memory buffer, the access request based on the access right.